JPH061853Y2 - Radiator hot air backflow seal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a hot-air backflow seal device for a radiator and is used for an agricultural tractor and the like.

(Prior Art) A suction radiator is provided in front of the engine, and a hood that covers the engine and the radiator is provided.
A tractor equipped with a hot air backflow seal between the inner surface of the bonnet and the outer surface of the radiator is known as Shoko 62-2263.
Known by the issue.

(Problems to be Solved by the Invention) By the way, the conventional seal is attached by an adhesive to either the inner peripheral surface of the bonnet or the outer peripheral surface of the radiator frame.

Therefore, in order to replace the seal due to deterioration, it is necessary to peel off the adhesive, which is very difficult, and the bonnet or the like may be damaged when peeling.

An object of the present invention is to ensure the attachment of the seal while allowing easy insertion and removal of the seal.

(Means for Solving Problems) In the present invention, a suction radiator 5 is provided in front of an engine 4, and a bonnet 7 that covers the engine 4 and the radiator 5 is provided, and an inner peripheral surface of the bonnet 7 is provided. With the hot-air backflow seal 13 provided between the radiator 5 and the outer peripheral surface of the radiator 5, the following technical measures are taken.
The above-mentioned purpose was achieved.

That is, the present invention, in the upper frame 9A of the radiator 5,
The mounting plate 14 is fixed, the sandwiching pieces 15 are provided on the mounting plate 14 with a space in the lateral direction, and the holes 17 formed in the hot-air backflow seal 13 are removably inserted into the sandwiching piece 15. It is characterized in that the seal 13 is attached.

(Operation) The suction air from the radiator 5 collides with the front surface of the engine 4 side as shown by an arrow A and flows backward as shown by an arrow B.

The backflowing hot air is blocked by the seal 13, and is prevented from moving to the front of the radiator 5 and being sucked again, thereby preventing the heat exchange efficiency of the radiator 5 from being lowered.

When the seal 13 is deteriorated, it is removed from the sandwiching piece 15 of the mounting plate 14 and a new seal 13 is inserted through the hole 17 of the sandwiching piece 15.
To insert.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 4, reference numeral 1 denotes a tractor vehicle body, which is a biaxial 4-wheel type having a pair of left and right front wheels 2 and a pair of left and right rear wheels 3.

Reference numeral 4 denotes an engine, which is mounted on the front wheel 2 side, and in front of the engine 4, a suction type radiator 5 is supported by a front vehicle bearing stand 6 and the like.

Reference numeral 7 denotes a bonnet, which is provided with a ventilation window on the front grill portion 8 and is covered with the engine 4, the radiator 5, and the like.

The bonnet 7 is composed of a top plate 7A and left and right side plates 7B as shown in FIG. 1, and the left and right side plates 7B are detachable from the top plate 7A, and the top plate 7A is detachable from the vehicle body 1. is there.

As shown in FIG. 1, the radiator 5 has a rectangular radiator frame 9 and a radiator core portion between the upper tank and the lower tank, and the dustproof mesh 10 can be attached to and detached from the core portion. In addition, a suction fan 11 is further provided to suck the cooling air in the direction of arrow A.

The suction fan 11 is rotated by the crankshaft of the engine 4 via the belt 12 shown in FIG.

13 is an elastic seal made of sponge or the like, and is interposed to shield the space between the outer peripheral surface (left and right and upper part) of the radiator 5 and the inner peripheral surface (top plate inner surface and side plate inner surface) of the hood 7. Here, the hot air that has collided with the engine 4 is prevented from flowing backward as indicated by arrow B in FIG.

As shown in FIG. 1, the seal 13 may have a ceiling portion 13A and a skirt portion 13B integrally formed in a gate shape, but the ceiling portion 13A and the skirt portion 13B are gate-shaped as blocks. In the case of this block type, the embodiment of the present invention is applied to the ceiling portion 13A, and the skirt portion 13B is attached to the side plate 7B by adhesion or clamping.

Reference numeral 14 denotes a mounting plate, which is attached to the front surface of the upper portion 9A of the radiator frame 9 by welding, bolting, or the like, projects upward, and has a width sufficient for the radiator frame 9.

As shown in FIG. 1, a sandwiching piece 15 is attached to the mounting plate 14 at intervals in the lateral width direction by welding, screwing or the like.
15 is a space in front of the mounting plate 14 that is opposite to the holding space 16 of the seal 13
Is formed.

The seal 13, in the embodiment, a ceiling portion 13A is provided with a hole 17 for mounting, and the hole 17 is inserted into the sandwiching piece 15 to provide a sandwiching space.
The seal 13 is sandwiched by 16 so as to be insertable and removable, and the bonnet top plate 7A is abutted on the top of the seal 13.

FIG. 3 shows the second embodiment, in which the holding piece 15 is attached to the mounting plate.
It is formed by punching from 14 and cutting and raising.

In addition, referring to FIG. 4 to FIG. 6, reference numeral 18 is a steering wheel and 19 is a driver's seat, and these postures are freely changeable between a front driving posture and a rear driving posture.

Numeral 20 is a forward step mounted on both sides of the central portion of the tractor body 1. A forward clutch pedal 21 and a forward brake pedal 22 are pivotally supported by a pedal shaft 23 below the forward step 20 so as to be vertically swingable. A pair of left and right front brake pedals 22 are arranged side by side, and are connected so that they can be engaged and disengaged by engaging and disengaging a connecting piece (not shown). Also, each brake pedal 22 is for the left and right rear wheels via a link mechanism 24 or the like. It is linked to a cam lever 26 of the braking device 25. The front brake pedal 21 can be locked at the stepped position by a front parking brake device (not shown).

Reference numeral 27 denotes a rearward-direction brake pedal, which is pivotally supported by a pedal shaft 30 provided on the tractor body 1 below a rearward-direction step 29 constituted by a part of a floor cover 28 as shown in FIGS. 4 and 5. Has been done. A pair of left and right brake pedals 27 for the rearward direction are respectively connected to the cam levers 26 of the left and right brake devices 25 via a link mechanism 31 and the like.

The backward brake pedal 27 is composed of a pedal stem 32 and a treading portion 33 as shown in FIGS. 4 and 5, and the treading portion 33 includes a cylindrical portion 34 and a bolt 35 on the lower surface which are fitted onto the pedal stem 32. It is removably attached to the pedal stem 32 via the. The pedal stem 32 penetrates through an elongated hole 29A formed in the rearward facing step 29 and is projected upward. The pair of rear brake pedals 27 for the rearward direction are connected to each other by a connecting piece 37 on the lower side of the pedaling portion 33 so as to be engageable and disengageable.

Reference numeral 38 is a rear parking brake, and an interlocking arm rotatably fitted on the pedal shaft 30 between the bosses of the pedal stem 32.
39 and a rod 40 for operating the interlocking arm 39,
The interlocking arm 39 has a stopper 43 that engages with the pedal arms 41 and 42 from below.

The interlocking arm 39 penetrates the standing wall 28A of the floor cover 28,
A guide / lock cylinder 44 is attached to the standing wall 28A.
The operation rod 40 is vertically movably inserted into the shaft, and the lower end of the rod 40 is pivotally supported by the interlocking arm 39 by a pin 45A.

The rod 40 has a notch 46 that engages and disengages with the cylinder 44, and has a grip at the top.

Therefore, with the left and right rear brake pedals 27 depressed, the rear wheels 3 are braked, the operating rod 40 is pulled up, and the stoppers 43 engage the arms 41 and 42 of the pedal 27. By engaging 46 with the cylinder 44, it is possible to park backwards.

It should be noted that the rod 40 is rotatable around an axis in a metal fitting 45 having a pin 45A and is immovable in the axial direction.

(Effect of the Invention) The present invention is as described above, and on the upper portion of the radiator frame,
A mounting plate is fixed, and a sandwiching piece is provided on the mounting plate with a space between them in the lateral direction, and a hole formed in the hot-air backflow seal is removably inserted into the sandwiching piece to attach the seal. Therefore, the seal can be easily attached and detached.

Moreover, since the seal is securely held by the sandwiching piece and the mounting plate, the seal can be prevented from coming off.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a perspective view of the second embodiment.
FIG. 4 is an external side view of the tractor, FIG. 5 is an enlarged side view of the rear parking brake, and FIG. 6 is a Y-Y arrow view of FIG. 4 ... Engine, 5 ... Radiator, 7 ... Bonnet, 9A ...
Upper part of frame, 13 ... Seal, 14 ... Mounting plate, 15 ... Clamping piece, 17 ...
Hole.

Front page continuation (72) Inventor Katsuji Kajino 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Sakai Works (56) Bibliography 57-42099 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A suction type radiator 5 is provided in front of the engine 4.
Is provided with a hood 7 that covers the engine 4 and the radiator 5, and a hot air backflow seal 13 is provided between the inner peripheral surface of the bonnet 7 and the outer peripheral surface of the radiator 5. A mounting plate 14 is fixed to the frame upper part 9A, and a sandwiching piece 15 is provided on the mounting plate 14 with a space in the lateral direction. The sandwiching piece 15 has a hole 17 formed in the hot air backflow seal 13. A hot-air backflow seal device for a radiator, characterized in that a seal 13 is attached by inserting the seal in a detachable manner.